Heating and cooling systems for walls, ceilings, and floors



May 6, 1958 A. WOLF 2,a. :sa,524

HEATING AND COOLING SYSTEMS FOR WALLS, CEILINGS AND FLOORS Filed March 11, 1953 A fkio W00 29 Sawfl /QM I 40 United States Patent HEATING AND COOLING SYSTEMS FOR WALLS, CEILINGS, AND FLOORS Alfred Wolf, Basel, Switzerland, assignor, by mesne assignments, to Etablissement Alustra, Vaduz, Liechtenstein Application March 11, 1953, Serial No. 341,731

Claims priority, application Switzerland March 20, 1952 1 Claim. (Cl. 257-124) The present invention has for its object a heating and cooling system for walls, ceilings and floors, including conductive metallic elements of extended generally flat form and provided with a plaster layer on the side facing the room which is to be heated or cooled. According to the invention in a heating and cooling system of this type, the metal elements are provided on the side carrying the plaster layer with teeth or tongues which are raised out of the plane of the elements after the fashion of splinters cut out of the thickness of the metal element, these tongues producing an increase in the efiective area of the metal elements and also forming anchoring means for the plaster layer.

A preferred embodiment of an arrangement according to the invention is illustrated in the accompanying drawings which only show however, as much of the system as is necessary for an understanding of the invention. In the drawings:

Figure 1 shows diagrammatically a portion of'the heatdistributing metal sheet forming part of the heat-transferring system;

Figure 2 is a cross-section thereof, with the metal sheet provided with a plaster layer.

The system includes in the usual manner a number of heating or cooling pipes, not shown, spaced with reference to one another and laid inside the ceiling, wall or floor for carrying the flat heat-conduction elements. 1n the case illustrated, the heat-conducting elements are constituted by metal sheets a preferably of aluminum, of which Figure 1 shows a portion. Out ofthe thickness of said sheet are cut splinter-like tongues a-1 which, as shown in Figure 1, rise above the surface of the metal sheet to form a comb-like structure. When in position, the metal sheets thus prepared are laid with the tongues 2 facing the room to be heated or cooled. These tongues produce an increase in the surface area of the metal sheets and thus further the exchange of heat through the latter, and they also form anchoring means for the plaster layer usually laid in such arrangements on the metal elements. Adhesion of the plaster layer to the flat metal elements as provided hitherto, is a difficult problem to solve, and an advantageous solution is provided by the present improved arrangement by the formation, of tongues on the metal elements. Generally speaking, the plaster layer includes,

' finishing plaster coat 0.

length and so bent that when the plaster coats are applied as shown in Figure 2, a foundation plaster coat b and a The tongues a-l are of such the tips of the tongues a-l extend into the finishing plaster coat c and so into the immediate vicinity of the outer surface of the plaster. As far as heat distribution is concerned, these tongues show a still further advantage inasmuch as heat or cold is transmitted thereby through the plaster coats which form poor heat-conducof said layer of plaster, whereby said metal element and plaster may form a part of a wall of a room, said layer of plaster facing the interior of the room, and heat may be supplied to said metal element to be conducted into the plaster.

said plaster layer and radiated into the room through References Cited in the file of this patent UNITED STATES PATENTS 

